Dot Hill Systems SANnet II 200 Especificaciones descargar pdf (Pagina 24)

Detailed Specifications

RAID

RAID levels 0, 1, 0+1, 3, 5, 1+0, 3+0 and 5+0. Enhanced RAID Levels

supported with logical volume implementation.

Maximum number of logical drives 8

RAID level dependency to each logical

drive

Independent. Logical drive configured in different RAID levels

can co-exist in an array

Maximum number of drives for each logical

drive

31 (RAID 3 or 5); 45 (RAID 0 or NRAID); 44 (RAID 0+1)

Logical drive identification Unique, controller randomly generated logical drive ID; Logical

drive name user-configurable

Maximum partitions of each logical drive 32

Maximum number of logical drives in a

logical volume

Maximum number of logical volumes 8

Maximum number of LUN per host ID Up to 32, user configurable

Concurrent I/O Supported

Tag command queuing Supported

Dedicated spare drive Supported

Global spare drive Supported

Co-existing dedicated and global spare

drives

Supported

Auto-rebuild onto spare drive Supported

Auto-scan of replacement drive upon

manually initiated rebuild

Supported

Auto-rebuild onto failed drive replacement Supported. With no spare drive assigned, the controller will auto-

scan the failed drive and starts to rebuild automatically once the

failed drive has been replaced.

Background firmware download Firmware can be downloaded during active I/Os. Administrator

may find appropriate time to reset controller later.

Auto recovery from logical drive failure Supported.

Caused when a user accidentally removes the wrong disk and

causes a 2

nd disk failure of a logical drive with one previously

failed disk

Caching

Write-back cache Supported

Write-through cache Supported

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Dot Hill Systems SANnet II 200 Especificaciones Pagina 24